Bankstown Line

The Bankstown railway line opened between Sydenham on the Illawarra railway line and Belmore in 1895.[1] This was the second solely suburban line to open in Sydney, following the North Shore railway line in 1890–all other rail lines were mainlines carrying traffic into and out of Sydney. In 1909, the line was extended to Bankstown, with intermediate stations at Lakemba and Punchbowl. In 1916, the Metropolitan Goods Line was constructed, running parallel to the Bankstown Line between Marrickville and Campsie. A second extension, from Bankstown to Birrong, opened in 1928. This provided connections to the main suburban railway at Lidcombe and the main south line to Liverpool. A new station between Lakemba and Punchbowl at Wiley Park opened in 1938.

In 1926 the Bankstown Line became the second line in Sydney to be electrified and a maintenance depot was constructed at Punchbowl. Electrification was extended from Bankstown to Regents Park in 1939.[2] The Punchbowl Maintenance Depot closed in 1994.

In January 2006 a four-year project to upgrade the line was completed. The work included the resleepering of the entire line, replacing the former wooden sleepers with the more durable concrete ones, replacement and upgrade of the signalling, and also replacement of the ageing catenary, mostly with the more modern double contact wire variety. The lengthy upgrade process was noted for its "January Closedowns", in which the entire line was closed in January for the bulk of the upgrade work to take place.

Electric passenger services operated along the Bankstown Line to Wynyard station until the 1956 opening of Circular Quay station and the completion of the City Circle. In 1979 with the opening of the Eastern Suburbs line the direction around the City Circle reversed with trips from Bankstown going to St James first and vice versa.

Operation of the Bankstown Line had been tied to the operation of all stations services on the Main Suburban railway line between Lidcombe and the City (marketed as the Inner West Line). Services consisted of a mixture of "Bankstown loop" trains (City - Sydenham - Bankstown - Lidcombe - Strathfield - City) and trains from both sides of the loop (Birrong or Regents Park) heading to Sefton and then further west. Until the early 2000s, a number of Bankstown trains continued via the Western Line to Blacktown via Granville and Parramatta.

A new timetable released in October 2013 broke the loop between the two lines. As part of the Rail Clearways Program, new turnbacks were constructed at Lidcombe and Homebush to allow the separation of both lines and increase their reliability and frequency. Services were also changed to operate mostly around the City Circle via Town Hall on weekdays (rather than via Museum). As part of the timetable change, a new numbering system was also introduced and the line was given the number T3. A sextuplication project between Erskinevile and Sydenham was also proposed as part of the Rail Clearways Program, but was cancelled in 2011. It was intended to separate Bankstown line services from those operating towards East Hills. The 2013 timetable sees most East Hills line trains using the Airport line to access the city.

The line was depicted in a brown colour in the early 1990s[3] before being changed to a purple colour around 2000,[4] before it became the current orange colour.

Sydney Metro City & Southwest is a plan to convert the Sydenham to Bankstown section of the line to use single deck metro trains. A new tunnel will be constructed between Sydenham and Chatswood, for access to the city. The stations at St Peters, Erskineville and the Bankstown to Liverpool / Lidcombe sections of the line will not be served by the metro; customers from stations west of Bankstown will be required to interchange at Lidcombe / Bankstown / Cabramatta.[5]

The following table shows the patronage of Sydney Trains network for the year ending 30 June 2019.

2018–19 Sydney Trains patronage by line[n.b. 1] [11]

† T1 (old)	116 553 000
† T1 (new)	19 389 000
§Station Link	4 600 000
T2	58 917 000
T3	30 578 000
T4	69 575 000
T5	7 738 000
T6	568 000
T7	1 802 000
T8	46 346 000
† T9	5 018 000